![The basics of Domain name, FQDN and URL address | Exchange infrastructure |Part 09#36 - o365info.com The basics of Domain name, FQDN and URL address | Exchange infrastructure |Part 09#36 - o365info.com](https://o365info.com/wp-content/gallery/the-basics-of-domain-name-fqdn-and-url-address-exchange-infrastructure-part-0936/FQDN-Fully-Qualified-Domain-name-%E2%80%93-structure.jpg)
The basics of Domain name, FQDN and URL address | Exchange infrastructure |Part 09#36 - o365info.com
![The basics of Domain name, FQDN and URL address | Exchange infrastructure |Part 09#36 - o365info.com The basics of Domain name, FQDN and URL address | Exchange infrastructure |Part 09#36 - o365info.com](https://o365info.com/wp-content/gallery/the-basics-of-domain-name-fqdn-and-url-address-exchange-infrastructure-part-0936/Exchange-Autodiscover-External-URL-Address.jpg)
The basics of Domain name, FQDN and URL address | Exchange infrastructure |Part 09#36 - o365info.com
Why am I seeing my fully qualified domain name (FQDN) in my Duo Authentication Proxy logs when using Duo for Palo Alto?
![The basics of Domain name, FQDN and URL address | Exchange infrastructure |Part 09#36 - o365info.com The basics of Domain name, FQDN and URL address | Exchange infrastructure |Part 09#36 - o365info.com](https://o365info.com/wp-content/gallery/the-basics-of-domain-name-fqdn-and-url-address-exchange-infrastructure-part-0936/Using-a-separated-namespace.jpg)